Mass and Energy (Leaving Cert Physics): Flashcards
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Practise the cards
13 cards from this deck
Einstein's mass-energy principle
Einstein's mass-energy principle
Mass & energy are interconvertible
Einstein's mass-energy equation
Einstein's mass-energy equation
E in
E in
Energy (joules, J)
m in
m in
Mass (kilograms, kg)
c in
c in
Speed of light, m/s
Value of
Value of
Approx.
Mass defect definition
Mass defect definition
Difference in mass between reactants & products
Why nuclear reactions release more energy than chemical
Why nuclear reactions release more energy than chemical
They convert matter into energy
1 unified atomic mass unit (u) in kg
1 unified atomic mass unit (u) in kg
kg
Mass reactants > mass products, energy change?
Mass reactants > mass products, energy change?
Energy is given out (exothermic)
Energy forms in nuclear reactions
Energy forms in nuclear reactions
Kinetic energy or gamma rays
Cockcroft & Walton 1932 achievement
Cockcroft & Walton 1932 achievement
First nuclear reaction with artificially accelerated particles
Cockcroft & Walton Nobel Prize year
Cockcroft & Walton Nobel Prize year
1951